Lighting fixture



seist. 15, 1925.

G. P. ROBINSON LIGHTING FIXTURE Filed Ma 28. 1923 INVENTOR Gmsrerrorflkoo/haah ATTORNEYS Patented Sept. 15, 1925.

UNITED STATES 1,554,035- PATENT OFFICE.

GROSVENOR I. ROBINSON, OF SUMMIT, NEW JERSEY, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO THE JEFFERSON GLASS COMPANY, OF FOLLANSIBEE, WEST VIRGINIA, A

CORPORATION OF WEST VIRGINIA.

LIGHTING FIXTURE.

Application filed May 28,

To all whom it may concern:

Be it known that I, GRosvnNoR P. ROBIN- soN, a citizen of the United States, residing at Summit, in the county of Union and State of New Jersey, have invented an Improvement in Lighting Fixtures, of which the following is a specification.

My present invention relates generally t electric light fixtures and more particularly to means for supporting the globes or other forms of shades made use of in such fiX- tures.

The object of the invention is to provide a screwless holder in which the globe is sup- 1 ported directly by the socket cover with means for preventing accidental separation or undue movement of the parts after the fixture is hung.

The details of the invention are hereinafter particularly described.

In the accompanying drawing:

Figure 1 is a vertical sectional view of a lighting fixture embodying my invention, the socket being shown in elevation, and the globe and lamp broken away.

Fig. 2 is a top view of the socket cover removed, and

Fig. 3 is a view of the locking ring or shell detached, in elevation.

Similar reference characters denote like parts throughout the several views.

Referring to the drawing, 10 indicates a globe or shade, 11, the incandescent lamp, and 12, the socket, all being of the usual 85 construction, the socket being provided with the common threaded stud 13, at its top for connection with a suspending chain or conductor tube. 14 indicates a shell mounted upon the shoulder 15 of the stud 13, which shell entirely covers the socket 12, its lower part extending below the socket in the form of two oppositely disposed arms or wings 16, somewhat fan shaped, curved outwardly and slightly bowed to conform to the inte- 4 rior surface of the globe 10, into which they are inserted when the fixture is assembled. This shell 14 with its integral depending arms or wings 16, is preferably out out of one piece of fiat metal and stamped up to shape.

The arms or wings 16 are readily placed into the mouth of the globe 10, by first inserting one of them with the shell tipped to one side and then lowered within the globe a 1923. Serial No. 641,803.

sufficient distance to permit the insertion of the other arm, after which the shell is turned into a vertical position and drawn upwardly until both arms contact with the inner surface of the globe on opposite sides thereof.

The arms or wings possess sufiicient resiliency to prevent too rigid pressure against the glassware, but to aid in this respect, I prefer to cut out in each wing a strip which is bent slightly upwardly forming spring tongues 17.

By this construction, it will readily be seen that the shell 14, performs two functions, that of a socket cover, and globe holder, the globe being securely supported in this manner alone, but in order to render the same fool proof or prevent any possibility of the accidental separation of the globe from its holder, I prefer to employ a ring 18 surrounding the vertical portion of the shell 14, and provided with an enlarged bottom or skirt 19 which fits over the mouth of the globe 10 and seats upon its outer surface adjacent thereto. There is a vertical slot 20, in the ring 18, on two opposite sides, and a short lug or pin 21 is provided on two opposite sides of the shell 14 at a predetermined point. After the wings 16 of the shell 14 have been placed in the globe 10, and drawn up against its inner surface, the ring 18 is placed over the top of the shell 14 with its slots 20, in alignment with the pins 21; it is then pushed down over the shell until the bottom of its circular skirt 19 seats upon the top of the globe.

The pins 21, have now passed out of the slots 20, and are closely adjacent to the top of the ring, and by giving the ring a partial rotation the slots 20 will move out of alignment with the pins 21, which will then project over the top of the ring and prevent its vertical movement, thus locking the shell and globe against accidental separation or undue movement occasioned by jar or other cause.

If desired, the under surface of the arms or wings 16 may be coated with an enamel to reflect the light against the inner surface of the globe.

My invention provides for the eflicient support of the globe directly from the socket cover, without the employment of intervening members; it is of the screwless type of holder; is readilyconnected, and simple and lnexpensive 1n constructlon.

I clann as my invention:

1. A cylindrical socket cover formed ,fron one ,piece of sheet metal having a rounded top with a central opening therein for the passage of the threaded stud on an ordinary lamp socket, the lower portion of the cover being downwardl extended. on two opposite sides in the orm of outwardly curved passage of the threaded stud on an ordinary lamp socket, the lower portion of the cover being dow-n-wardly extended-on two opposite sides in the form of outwardly curved Wings, each having a out out portion bent upwardly forming 'a spring-tongue to bear against "the inner surface of ;a shade or globe...

8.. In a lighting fixture and in v combination, a globe or. shade, a lamp socket .pro-

vided with a threaded. stud at one end, a cylindrical cover therefor having a lug on two opposite sides and a rounded top with a central opening therein through which said stud projects,the bottom of said cover being provided on opposite sides with integral downwardly and outwardly curved.

wings engaging the interior of the globe, and a rlng surrounchng the vert1cal portion of the cover and provided with a vertical, slot on two opposite sides with whichsaid lugs on the oover-coact and by means of which the neck of the globe is clamped upon said wings.v

Signedby me this 4th day of May 1923:.-

GROSVENOR P.;' ROBINSQN. 

